Sorry I'm writing for such a problem or that I don't understand much, because I decided on the previous version, bone 10.14.5 everything works well for me except ethernet and wifi, it recognizes the input l'an but never connects and The wifi does not appear, and I have downloaded Kexts from the downloadable section I have put them in the library and in efi and it does not function I only have the Internet if I start from the usb, what can I do?